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1 ---------------------------------------- ---------------------------------------- -------------------- Revision No. 4. Rev. Date: Schedule 5. Direct Cool Refrigerator ---------------------------------------- ---------------------------------------- -------------------- 1. Scope: This scheme specifies the energy labelling requirements for electric mains powered Direct Cool refrigerating appliance of the vapour compression type intended for household and similar use being manufactures, imported, or sold in India. 2. Normative Reference: This Schedule shall be read in conjunction with IS 1476 (Part-I): 2000. with all amendments. 3. Terms and Definitions: For the purposes of this schedule, the definitions given in IS 1476. (Part-I): 2000 with all amendments and those below apply. The definitions below take preference over the ones in the above mentioned standards.

2 Direct Cool (DC) Appliance: These are the refrigerators with or without crisper, ice making or frozen food storage compartments and are NOT cooled by internal forced air circulation. Cooling is primarily obtained by natural convection only. However some products may have fan to avoid internal condensation but not to claim as frost free. Projected Annual Energy Consumption (PAEC): The estimated energy used by a single unit during one year's use. This is calculated from Tested Energy Consumption (E t). (Units: kWh/Year). Tested Energy Consumption (Et): The value of energy consumption as determined by IS. 1476 (Part-I): 2000 with all amendments. This is calculated for a period of 24 hours. (Units: Wh). Comparative Energy Consumption (CEC): The nominal energy consumption of a model of refrigerating appliance. It is based on the PAECav of the model.

3 The CEC appears on the energy label. (Units: kWh/Year). Total Adjusted Storage Volume for Direct Cool (Vadj_tot_dc): The rated storage volume of a compartment adjusted to compensate for heat loadings on spaces which are at temperature other than that of fresh food type space. NOTE: The adjusted volume shall be calculated on the basis of the STORAGE VOLUME of each compartment. Star Rating: The number of stars displayed on the energy label. The available stars are between a minimum of one and a maximum of five shown in one star interval. The star rating is calculated from the Star Rating Band. The Star Rating determination will vary for different 1. ---------------------------------------- ---------------------------------------- -------------------- models based on the storage volume. (No units). Star Rating Band: The Star Rating Band is a range of energy efficiency (kWh/Year) which is arrived by calculations and is used for determining the number of stars displayed on the energy label.

4 Label Period: means the validity period of the electricity consumption under the energy labelling plan specified in the schedule. 4. Family of models: It is the range of models of one particular brand, to which a single set of test reports is applicable and where each of the models has the same relevant physical characteristics, comparative energy consumption, and energy efficiency rating and performance characteristics. The term model' is synonymous with family of models'. 5. Eligibility Criteria: Pull Down Test: The appliance shall meet the requirements set out in of IS 1476 (Part-I): 2000 with all amendments and manufacturer will be required to declare the Refrigerator pull down period for the model. Note: Exception to IS 1476 (Part-I):2000 with all amendments are:- (a) Room ambient temperature shall consider 43 C. (b) The refrigerator inside Target Temperature for Freezer Compartment shall consider -8.

5 C. (c) Temperature sensors location in the freezer compartment shall comply with clause of IS 15750:2006. 6. Testing Guidelines Test Procedure: The testing code and procedure for Direct Cool Refrigerator shall be as per IS 1476 (Part-I): 2000 with all amendments. Test Parameter: Energy Consumption: The Energy Consumption of the Direct Cool refrigerator shall be tested as per IS 1476 (Part-I): 2000 with all amendments. Note: Exception to IS 1476 (Part-I): 2000 with all amendments are:- a. The room ambient temperature shall consider 32 C. b. The refrigerator inside Target Temperature for Freezer Compartment shall consider -6 . C &for fresh food Compartment shall consider 3 . c. Temperature sensors location in the freezer compartment shall comply with clause of IS 15750: 2006. 2. ---------------------------------------- ---------------------------------------- -------------------- d.

6 Energy consumption shall be calculated as defined in Annexure 1. Number of tests per unit: Each unit shall be tested with sufficient test runs to enable a valid Et to be determined for that unit. This determination shall be documented in a test report containing the test result for all test runs used to derive Et (refer Annexure 1). Rated Volume: Storage volume of the appliance shall meet the requirements as defined in IS 1476 (Part-I): 2000 with all amendments. Note: Gross Volume shall also be calculated by the same method as defined for the storage volume ( , by geometric method). Tolerance: The tolerance limit for the volume (storage & gross) and pull-down shall be as defined in IS 1476 (Part-I): 2000 with all amendments. Sample Size: For the purpose of determining the CEC of a model for labeling, three separate units of the nominated model shall be tested for energy consumption in accordance with IS 1476.

7 (Part-I): 2000 with all amendments. Rounding: the number shall be rounded to the nearest whole number as IS 2:1960, reaffirmed 2000, Edition The values of PAEC, PAECav, CEC, Gross & storage volume and Star Rating Band shall be rounded to the nearest whole number as IS 2:1960, reaffirmed 2000, Edition Energy Labeling Plan: The star rating parameters kdc (Constant Multiplier (kWh/litre/Year)) & cdc (Constant Fixed Allowance (kWh/Year)) shall be obtained from TABLE. / , depending on the year of Manufacturing/import/assembling Product Manufactured Table to be used 1 1st January 2015 to 31st December 2016. 2 1st January 2017 to 31st December 2018 The following equation shall be used to determine the Star Rating Bands for a particular model: Star Rating Band (SRB)dc = kdc * Vadj_tot_dc+ cdc Where, kdc= Constant Multiplier (kWh/litre/Year).

8 Vadj_tot_dc= Total Adjusted Storage Volume for direct cool (litre). cdc= Constant Fixed Allowance (kWh/Year). 3. ---------------------------------------- ---------------------------------------- -------------------- TABLE : Star Rating Band valid from 1st January 2015 to 31st December 2016. Star rating Comparative Energy Consumption (CEC) Criteria band 1 Star * * Vadj_tot_dc +346 CEC < * Vadj_tot_dc +432. 2 Star * * * Vadj_tot_dc +277 CEC < * Vadj_tot_dc +346. 3 Star * * * * Vadj_tot_dc +221 CEC < * Vadj_tot_dc +277. 4 Star * * * * * Vadj_tot_dc +177 CEC < * Vadj_tot_dc +221. 5 Star * * * * * CEC < * Vadj_tot_dc +177. TABLE : Star Rating Band valid from 01st January 2017 to 31st December 2018. Star rating band Comparative Energy Consumption (CEC) Criteria 1 Star * * Vadj_tot_dc +221 CEC < * Vadj_tot_dc +277. 2 Star * * * Vadj_tot_dc +177 CEC < * Vadj_tot_dc +221.

9 3 Star * * * * Vadj_tot_dc +141 CEC < * Vadj_tot_dc +177. 4 Star * * * * * Vadj_tot_dc +113 CEC < * Vadj_tot_dc +141. 5 Star * * * * * CEC < * Vadj_tot_dc +113. The above equation provides for the value of the various Star Rating Bands for a particular model. 4. ---------------------------------------- ---------------------------------------- -------------------- The CEC of the model as determined from will be compared with the various Star Rating Bands as given in the above tables. There is no tolerance for the Star Rating Bands. All tested products must meet minimum threshold of each Star Rating Band. The scope for manufacturing tolerance and other variations shall be accounted for when determining the Star Rating. ENERGY LABEL VALIDITY ( , for CHECK & CHALLENGE TESTING): the comparative energy consumption (CEC) value shall be accepted as valid, when each unit tested the measured energy consumption , projected annual energy consumption (PAEC) shall be less than or equal to of the declared comparative energy consumption.

10 There is no tolerance for Star Rating Band, projected annual energy consumption (PAEC). must meet minimum threshold of Star Rating Band. Projected Annual Energy Consumption (PAEC): The process consists of measuring the tested energy consumption (Et) ( IS 1476 (Part-I): 2000 with all amendments), of each unit tested, then calculating the projected annual energy consumption (PAEC) of the unit. PAEC = Et* 365/1000 (kWh/Year). Et = tested energy consumption expressed in Wh per 24 hours, rounded to the nearest whole number as IS 2:1960, reaffirmed 2000, Edition After testing three or more separate units the separate values of PAEC shall be averaged and referred to as PAECav. COMPARATIVE ENERGY CONSUMPTION (CEC): The CEC for a model shall not be less than the average PAEC value , PAEC av (the number shall be rounded to the nearest whole number as IS 2:1960, reaffirmed 2000, Edition ) for the three (or more) units which are tested to determine the label particulars.